forked from animatedread/Warrior_EA
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444909d0a3 |
feat: S2 meta-labeling head - binary trade-quality model over the classic-candidate corpus
The NN now has a target that is not per-bar direction (closed, best-of-999 p=1.0000): P(win | this journaled candidate, at the EA's own SL/TP, net of cost). One net for all 52 pattern-sides, AIType=AI_META. - NetForward.mqh: the host-side softmax+CE gradient generalized total==3 -> 2||3 on both backprop paths; a 2-class softmax IS a logistic head, and no compute backend changes. - SignalMETA.mqh (new): corpus loaded read-only from the LARGEST signal DB on disk (decoupled from the config fingerprint that burned four S1 runs); the GMT->server offset is measured PER ROW against entryPrice vs bar open (DST-immune, histogram logged); a window-span regime filter drops the pre-2017 daily-backfill rows; 31-feature setup descriptor appended at the input (26 one-hot + side + tanh netVote + SL/TP ATR + spread/ATR). - Training.mqh: candidate-queued pass 1, binary-target pass 2, per-candidate calibration (2.5) and OOS (3) walks. Counter mapping win->Buy / loss->Sell lets checkpoint selection, the edge floor, the plateau ladder and the family-wise deploy gate run UNCHANGED: precision reads as win rate among traded candidates, chance as the base win rate, recalls as sensitivity/ specificity. Era-end META line: coverage x (p - break-even) vs the null. - Labels are the side-conditional triple-barrier win caches - never the DB's stop-and-reverse outcome. Logit adjustment deliberately skipped (~40% base rate). Live inference + online learning guarded off until S3. - Fingerprint: conditional |TGT:META1; State\META\ folder + 2-output filename slot keep meta models fully separate from direction models. Compiles clean (0 errors, 0 warnings). S2 run = attach a chart with AIType=AI_META; S3 wires the votes via the per-side hooks. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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0848c8a16c |
fix: live inference queried the 1-tick forming bar - a window training never built
RefreshLatestSignal ran at the first tick after a bar opens and built its window at r=0: series index 0 at that instant is a candle with one tick of data - (close-open)/atr ~ 0, high ~ low, degenerate volume, indicators on a 1-tick bar. Training never produces such a window (every labeled bar is fully closed, entry at that bar's CLOSE), so the deployed model's final timestep - the one the LSTM/HYBRID output is keyed to - was out-of-distribution on every live decision, and pass 3's deploy-gate OOS scores measured a different query than live executed. The parity index is r=1: the newest CLOSED bar, whose close IS the current price - the exact instant the label's hypothetical entry happens. Single backtests shared the old skew (same r=0), which is why the tester agreed with live while both disagreed with training. Bookkeeping split that the index change forces: m_lastBarTime/dtStudied stay anchored to the FORMING bar's open (they gate against SERIES_LASTBAR_DATE; anchoring at bar 1 would re-fire the refresh every tick), while bt - the arrow, its High/Low placement, and NMS declustering - anchors to the decision bar, now matching the rescan path's convention. Also: a failed refresh no longer trades the previous bar's signal for the whole bar. RefreshLatestSignal returns success, zeroes dPrevSignal on failure (no opinion beats a stale one), and RefreshConvergedSignal advances dtStudied only on success so the next tick retries - the tester path (m_lastBarTime) already worked this way; this is the live path catching up. FORCES RE-VALIDATION of deployed models: the effective live query distribution changes. Bundled with the backprop transpose fix's retrain. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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2189316c35 |
fix: the operating point was fitted on bars the net had memorized
FitDirConfThreshold harvested its margin histogram from pass 2's own
backprop samples. Pairing every fit against the same era's OOS result
shows what that measured:
PAI era 1 IS 25% cov @ 66.1% (-0.8pp) -> OOS 64% (-3pp) gap +2.1pp
PAI era 76 IS 90% cov @ 79.6% (+12.7pp) -> OOS 65% (-2pp) gap +14.6pp
LSTM era 9 IS 77% cov @ 81.6% (+14.6pp) -> OOS 63% (-4pp) gap +18.6pp
The gap grows monotonically while OOS stays flat, so within a handful of
eras the curve stops describing behaviour on unseen bars. That is fatal
here specifically, because the objective branches on the SIGN of
(p - break-even): the memorized curve reads +12pp at 95% coverage, so
coverage x (p - p0) correctly maximises coverage and returns ~0.02 - fire
on every bar. The "p < p0 -> get more selective" branch, which is the
actual regime and the entire point of
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983a6a3de1 |
fix: the operating-point fit maximised precision, so a no-skill model traded everything
FitDirConfThreshold walked from the most selective bin down to bin 0
keeping `precPct >= bestPrec`, with the stated intent that a plateau
should walk toward more coverage. The failure mode is the models that
need a threshold most: a net with no edge scores its base rate at
EVERY threshold - a perfect plateau - so the walk ran all the way to
bin 0 and returned 0.0, i.e. fire on every bar.
Reported as PAI "overshooting signals" while the other three stayed
selective. PAI has the flattest plateau because its margin
distribution is the most degenerate: its OOS outputs span the full
0.000..1.000 where CONV sits at 0.214..0.814, so nearly every call
lands in the top bins and precision barely moves as the walk descends.
The deeper problem is that precision is not the money quantity. For a
k:m barrier with p0 = m/(m+k),
EV = (p - p0) * (k + m) => EV per bar = coverage * (p - p0) * (k+m)
and (k+m) is constant across thresholds, leaving coverage * (p - p0).
That objective needs no tie-break and behaves correctly everywhere:
p > p0 everywhere -> takes the coverage (the old outcome, now for a
reason rather than as a plateau artifact)
p flat at p0 -> every point scores 0, the coverage floor decides
p < p0 everywhere -> the LEAST coverage loses the least, so it gets
MORE selective instead of trading everything
The last case is the current reality for all four models (-1 to -4pp
against break-even) and is the exact opposite of what the old rule
did. The comparison is sound: the histogram is already fitted on wins
(qTradeWon), not label agreement, so precision and break-even measure
the same quantity.
Ties now keep the more selective point - the loop reaches it first and
the test is strict >.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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5cef0947f4 |
fix: the deploy gate was benchmarking a win rate against a label frequency
The gate rests on an invariant stated at ExpertSignalAIBase.mqh:199 - under a
driftless walk P(touch +k before -m) is m/(m+k), and break-even for a k:m trade
is ALSO m/(m+k), so "beats chance" and "is profitable" are the same test.
That invariant needs reward >= risk, and the measured geometry no longer
satisfies it. With target 1.62*ATR and stop 3.33*ATR, break-even is 67.3%, but
both-won bars were stripped out of Buy and Sell so the label base rate read
37.5%. chancePrecPct is max(BuyTotal,SellTotal)/bars, so the gate was clearing
models nearly 30pp short of break-even: 42% "directional precision" is +4 sigma
against 37.5% and loses money on every single trade. Live since
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19dfb91108 |
feat: fitted directional confidence threshold - selectivity gets a mechanism
The training loss and the selection metric wanted different things and only the second one knew it. Logit-adjusted cross-entropy has no term for "how often should I trade", so the head calls a direction on 87-91% of bars. The selection metric is precision x coverage credit, saturating at the coverage floor - above the floor extra calls earn NOTHING and only precision counts. So selection wanted few good calls, the loss produced many mediocre ones, and all selection could do was pick the least-bad era out of what it was handed. Nothing pushed the model toward selectivity. This gives the decision RULE the policy instead of distorting the loss (which is estimating class probabilities correctly, and a probability estimate should not be bent to encode a trading policy - Elkan 2001: estimate, then choose the operating point separately). AdjustedSignalFromSoftmax now abstains unless the winning direction's softmax margin over its best rival clears a fitted threshold. Margin, not the winning probability: the latter moves with overall calibration rather than with how close the decision actually was. Fitted on IS, applied to OOS and live. Pass 2 already forward-passes every IS sample, so the margin histogram is harvested there for free (primary occurrences only, so the oversampled replay queue cannot skew the operating point); the fit runs at the end of pass 2, BEFORE pass 3, so the deploy gate grades the thresholded model on bars the threshold never saw. Fitting on pass 3's own predictions would be choosing the operating point on the data being graded - the best-of-N error corrected in five other places here. Objective: maximise IS directional precision subject to still clearing the SAME coverage floor the deploy gate uses (base rate x 0.25, re-derived locally so the two cannot drift apart). Swept top-down in one pass; ties go to the LOWER threshold, since equal precision for less coverage is strictly worse. Under DIR_CONF_MIN_FIT_CALLS (200) it runs unthresholded rather than on a guess. The threshold is part of the MODEL, not the run: captured with Net.CaptureWeights(), restored with the weights at both restore sites, and appended to the .cfg under the same length-guard convention so a deployed model reloads at the operating point its gate actually cleared. A pre-2026-08-09 .cfg reads 0.0, which is exactly the behaviour it was trained under. Per-era line now prints "@margin>=X.XX" next to coverage, so a coverage drop can be attributed to the operating point rather than guessed at. Both build variants compile 0 errors / 0 warnings. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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ee48381cbd |
fix: NMS gates the TRADE, not just the arrow - one arrow is now one trade
NmsLiveAccept() appeared in exactly one place: wrapped around DrawObject(). It never touched dPrevSignal, and dPrevSignal is what LongCondition() / ShortCondition() / SignedAIConfidence() read. So a declustered bar lost its arrow and still opened a position. Measured on SP500 H1 2026-08-09: CONV called a direction on 64% of bars, so the ~500 bars visible on screen held ~320 decisions - and ~40 arrows were drawn. Roughly one arrow per eight positions the EA would take. And the survivors are not a random eighth. Rule 2 of the declustering keeps the HIGHER-CONFIDENCE side of a cluster, so the visible set is systematically the best member of each run. A chart showing the best of every eight decisions and hiding the rest reads far better than the model is - the same best-of-N selection error already corrected in the geometry scan, the indicator tuner, the lag profile and the deploy gate, this time on the display layer, where it is most likely to mislead the person deciding whether to trade. Fixed by neutralising dPrevSignal when NMS rejects, rather than adding a "may trade" flag consulted at each read site: that leaves exactly ONE definition of what the model decided this bar, so the arrow, the panel's "Current signal", the confidence feeding sizing/SL/TP/trailing, the refresh tally and the order itself cannot drift apart again. Also reports the consequence instead of hiding it. Every OOS counter on the era line still scores every directional call - a population ~8x larger than what now trades - so the line carries a second figure: | TRADED (declustered) NN% on N calls (edge +Npp) replaying the identical rule over pass 3 (which walks OOS bars oldest to newest, the same order the live sweep sees). Its cursors are separate members from the live ones so a training pass can never disturb the live chart's declustering. Deliberately NOT switched into selectionScore yet. Declustering cuts coverage from ~64% of bars to ~8%, well under MIN_COVERAGE_FRACTION_OF_BASE_RATE, which would make every checkpoint undeployable overnight - the minRR collision and the recall-floor catch-22 twice over. The floor gets re-derived from these measurements first. Compiles clean: 0 errors, 0 warnings. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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bfc1da9de1 |
fix: the sequence models were reading the window backwards
BuildFeatureWindow() replaces eight hand-rolled copies of the same loop
and feeds the window OLDEST BAR FIRST. Every copy fed it newest-first,
because MQL5 timeseries indices run backwards and `r + b` with b ascending
walks into the past.
Harmless for PAI and CONV - a dense layer learns a weight per position
either way, a conv learns time-mirrored kernels. Not harmless for the
recurrent stacks:
- LSTM_SeqStepForward reads `inputs + t*Iw`, so step t is block t.
- It writes output[] only when t == steps-1: the visible output IS the
last hidden state.
- c_t = f*c_{t-1} + i*g decays toward the start of the sequence.
lstm_seq_flowcheck.cpp measured block 0's influence on the output at
1.2e-2 of block T-1's, at the shipped forget bias of 1.0.
So the bar being PREDICTED sat at the far end of the decay and the output
was handed to the OLDEST bar in the window - the exact inverse of what the
window is for. ~80x backwards on LSTM and HYBRID, on all three tiers
(OpenCL kernel, CPU DLL, pure-MQL5 inference), which is why it never
surfaced as a backend discrepancy.
This does not create edge - the MI diagnostics read at the noise floor
(p=0.4975) with a working positive control. It makes the one hypothesis
those diagnostics explicitly do NOT cover testable: they are marginal and
per-bar, and state they "cannot rule out one that only exists in
combination or across time". The sequence model is the instrument for
across-time structure and it has been crippled, so that hypothesis has
never been honestly tested.
Fingerprint gets an unconditional |WIN:2 - the vector keeps its shape and
its features, so a stale .nnw would load cleanly and run a model fitted to
one ordering against the other, silently. Re-keying every config is the
point, not collateral damage. FORCES A FULL RETRAIN.
Also: the now-relative bar caches are re-keyed on the two live paths.
EnsureBarCachesCapacity() was only ever called from training paths, but
once m_trainingComplete is set ScheduleTrainingIfNeeded() routes every bar
to RefreshConvergedSignal() and Train() is never re-entered - so nothing
cleared the feature cache again for the life of the process. A chart that
trained to convergence kept replaying the rows computed for the last
training era's bar grid: the live signal froze at its convergence-time
value, and OnlineLearnStep() backpropped those stale features against
freshly resolved labels. Backtests were never affected (an inference-only
process never allocates the arrays, so every read recomputes).
Compiles clean: 0 errors, 0 warnings.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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ceb6342dfd |
feat(ai): spread as a volatility-regime feature, and fix a stale-index cache in both new blocks
Adds spread/ATR and the spread change ratio as network inputs (EnableSpreadFeature,
default on). Spread is the one microstructure channel that is both FX-available and
genuinely historical in the Strategy Tester - "during testing, the spread is not modeled
but is taken from historical data" - so unlike swap, signed tick flow or depth of market it
is something a backtest can honestly validate.
What it encodes, stated precisely because the raw measurement overstates it.
research/test_spread.py found spr/atr the strongest single feature in this codebase, on 5
of 8 instrument/geometry cells at 2-4x any volume feature. But the barrier LABEL charges
the spread inside its own barriers, so a wide-spread bar is mechanically likelier to
resolve as a loss and the feature would partly be predicting its own cost model. Relabelling
at zero cost and re-measuring the identical feature showed 20-40% of it WAS that tautology
and the majority was not (XAUUSD retained 97%). What survives is a volatility-regime
reading: spread is near-fixed while ATR is not, so the ratio runs high exactly when
realised volatility is below its own ATR estimate, which genuinely predicts whether
ATR-scaled barriers get reached. It is UNSIGNED - Neutral-vs-directional only, never a side.
Also fixes a stale-index bug I introduced with the cross-asset panel and had just repeated
in the spread series. Both cached on length alone:
if(m_crossAsset.Bars() >= bars) return true;
MQL5 series indices are relative to NOW, so one new closed candle shifts every index by
one. Keyed only on length, the panel keeps serving its index 0 as a bar that is no longer
the newest, and every cross-asset value is read one bar out of step with the price features
sitting beside it in the same vector - silently, with no error and no shape change. This is
the same class of defect as the dtStudied watermark behind the zero-direction backtests.
Both now carry a datetime anchor on m_Time.GetData(0), the same invalidation key the
label/feature bar caches already use.
And a performance fix that fell out of it: with correct invalidation the panel rebuilds on
every new bar, and RefreshConvergedSignal runs per bar - which in the tester would mean one
full multi-symbol resample per simulated bar at training depth. Inference only reads bars
0..m_historyBars-1 plus the panel's own slow window, so it now requests exactly that. The
cache check is >=, so a deeper panel left from training still satisfies it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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8710240cd5 |
fix(signals): revive a dead MA model, and demote Sanyaku from state to event
Two defects surfaced by research/test_classic.py, both verified fixed by re-running the
transcription against 178k bars of EURUSD H1.
CSignalMA model 1 could never fire. For any recursive average - and MA_TYPE_EMA is the
shipped default - MA(i) = a*Close(i) + (1-a)*MA(i+1), so
DiffMA(i) = a * (Close(i) - MA(i+1))
DiffCloseMA(i) = (1-a) * (Close(i) - MA(i+1))
are positive multiples of one quantity and always share a sign. Model 1 asks for a close
BELOW a RISING average, which is precisely the combination that identity forbids: 0.000%
of bars, either direction, any symbol. The MQL5 standard library this was ported from
defaults to MODE_SMA, where the two are merely correlated - the bug arrived with the EMA
default, not with the port. Reading the slope one bar back (DiffMAPrev) breaks the tie for
every MA type while keeping the model's stated meaning. Now fires on 7.92% of bars.
CSignalIchimoku model 11 fired on 27% of bars at weight 100. Sanyaku is three standing
STATES conjoined with no transition term, so it held across long stretches - and being
last in the if-chain at the top weight, the module's highest-conviction reading was also
its most common one, overwriting all eight event models below it on a quarter of all bars.
The old comment rejected an event form because "demanding all three flip on the same bar
would fire almost never" - true, but that is not the alternative. Kouten is the TURN: the
ALIGNMENT transitions, and only one role need change for it to. Testing !Sanyaku(idx+1)
fires once per aligned stretch. Now 2.17%, in line with Kumo breakout (2.4%) and the
strong TK cross (1.1%). DataReady() extended one bar deeper to cover the lookback.
Neither pattern showed edge before or after; this is about the models meaning what they
say and the vote not being dominated by a constant.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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d7eea325fb |
refactor(ai): extract Layer.mqh and deduplicate AI config
- Moves CLayer neuron construction to AI/Impl/Layer.mqh to keep Network.mqh clean - Unifies four previously duplicated architecture initialisation blocks (MLP/CONV/LSTM/HYBRID) into a single shared function - Eliminates risk of behavioural drift where one architecture missed a setter, causing mismatched feature sets or targets |
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3bae2f9254 |
fix: the imbalance correction never ran during the auto-tune search
Neutral collapse on all four topologies by era 5 with a 2:6 barrier (recall Buy 0% / Sell 0% / Neutral 100%), and the panel stuck on "measuring...". One root cause, and it was not the barrier. The labels were fine: Buy 25.4% / Sell 22.0% / Neutral 52.5%, which is exactly gambler's ruin for m=2,k=6 (2/8 = 25% per side), with only 0.1% of Neutral coming from the vertical barrier - so the new m*k horizon scaling is right, arguably generous. What was broken: Train()'s era-start block wrapped UpdateClassPriors() in `if(!m_evalMode)`. The auto-tune GA scores every candidate in eval mode, and AutoTuneIndicators ships ON, so on a default configuration EVERY era of the search ran with unmeasured priors. ApplyLogitAdjustment() requires measured priors; without them it calls ClearLogitAdjustment() and returns. So the entire search trained under PLAIN cross-entropy. With a 52.5% majority class the optimum of plain CE is "always predict Neutral", and that is precisely what all four models found. The panel followed: its counters only advance on bars the model CALLED Buy or Sell, so a collapsed model leaves them at zero and the line reads "measuring..." forever. This was latent, not new. It has been true for every auto-tuned run, but it was invisible while the labels were near-balanced - last night's accidental 1:1 barrier gave 43/40/17, where plain CE has no majority to collapse into. Widening the stop to 2*ATR (correctly - 1*ATR is too tight to survive noise) moved Neutral to the majority and exposed it. The guard's stated fear cannot happen. These priors are measured from the LABEL distribution, and the tuner only perturbs indicator periods (MA/RSI/MACD/Ichimoku/AD). The barrier label depends on ATR, SL_Mode and TP_Mode - none of which the search touches - so every candidate sees byte-identical labels and identical priors. There is nothing to contaminate. What the guard actually protected was the .stats write, and that is gated separately: eval candidates never checkpoint and never persist. Also, because this is the THIRD quiet no-op to cost a run in this codebase (after the fictional oversampling log line and the shadow-blend skip): - ApplyLogitAdjustment() now WARNS when it declines to install, instead of silently clearing. A mechanism that cannot announce it is not running is indistinguishable from one that is. - The panel distinguishes "measuring..." (before era 1, nothing scored yet - an honest warm-up) from "no directional calls yet" (eras trained, zero calls - a finding, not a wait). Both builds compile 0 errors / 0 warnings. No retrain forced by this commit itself, but the collapsed models must be discarded. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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b4a704d309 |
feat(ai): triple-barrier labels replace exact-pivot ZigZag targets
The 31:1 class imbalance was self-inflicted by the TARGET, not a property of the market. Labelling only the exact bar where a ZigZag pivot confirms gave Buy 1164 / Sell 1164 / Neutral 35841, and every correction mechanism this codebase accumulated sits downstream of that one choice: the logit-adjusted loss and its range cap, the prior EMA, the +-3.0 output-bias seed, balanced-accuracy-then-precision selection with its coverage floor, the recall floor and its catch-22, the alternation gate, NMS, and the four oversampling designs that collapsed before them. The reference this engine is built on (references/neuronetworksbook.pdf ch. 3.1/3.3) also uses ZigZag, but targets the DIRECTION TO THE NEXT EXTREMUM on every bar - ~50/50 by construction, with no imbalance to correct at all. It never had this problem because it never asked "is this the pivot bar". Labels are now the triple barrier (Lopez de Prado ch. 3), using the EA's OWN SL_Mode/TP_Mode: does a trade opened at this bar's close reach its target before its stop, within a horizon. Buy = long resolves, Sell = short resolves, Neutral = neither. Consequences: - dir-precision in the era line stops being a proxy and becomes the win rate of the strategy under its own exit rules. - Expected balance ~25/25/50 at the shipped 1:3 (gambler's ruin), i.e. ~2:1 instead of 31:1. Measured and logged at the end of the prebuild. - Spread is charged on both legs, so it is a NET win rate. - Intrabar ambiguity resolves to the STOP. OHLC cannot order two touches inside one bar and the optimistic reading is how a backtested edge becomes a live loss. ZigZag stays as input features (EnableSwingContext) and now also supplies the vertical barrier: the horizon is the median confirmed leg length, snapped to a coarse ladder. Derived, not configured, and deliberately kept out of the filename fingerprint - a filename keyed on a measured quantity orphans a trained model the moment the measurement moves. Removed, because the premise died with the old target: - the alternation gate. Correct for pivot labels (a ZigZag cannot emit two same-type pivots in a row, so a repeat was provably a false fire), and wrong for barrier labels, which answer each bar independently. It also took its worst consequence with it: a one-sided model previously got ONE trade per backtest, a hard blocker on marketplace validation. - SignalClusterWindow now defaults off - it de-duplicated repeats that are now real trades. Kept as an opt-in display control. - LABEL_WINDOW_BARS, the pivot-widening pass, ConfirmedZigZagLabel. - the era-0 output-bias seed now needs a genuinely dominant class (0.70) rather than 0.40; at ~50% Neutral a +-3.0 seed is a distortion, not a correction. Also fixed, both found while wiring the above: 1. RefreshConvergedSignal sized its buffers from a date delta (Bars(sym, period, dtStudied, TimeCurrent())). dtStudied is a training watermark; in the tester it is loaded from a live-chart save AHEAD of the simulated date, so the interval inverted, Bars() returned ~0, and the buffer came out at exactly m_historyBars - deep enough for the OHLC window and far too shallow for the Donchian-50 / 20-bar-return / SMA extension behind it. Inference silently computed DIFFERENT features from the ones training learned on, live as well as in the tester. Now sized from what the feature builder actually needs. 2. The barrier horizon is resolved on the deployed path too. A deployed model never enters Train(), so it never reached the prebuild, and OnlineLearnStep reads the horizon as its confirmation delay - left at the fallback it would have backpropped bars whose barriers had not resolved. Silent lookahead in the one place that writes to a live model. SL_Mode/TP_Mode join the weights fingerprint: they define the labels now, so a model trained at 1:3 must never be silently reused at 1:1. This re-keys every pre-existing model by design - none were trained on this task. Inference census extended with the vote gate. LongCondition/ShortCondition open with a readiness check the refresh counters never see; in the tester it reduces to "the seeded _optcache.nnw must have LOADED", and if it did not, every vote is hard-zeroed while the model still answers Buy. The old three counters would have read that as "the model says Neutral" - false, and a completely different fix. This is the leading candidate for the zero-direction backtest and the census can now name it in one run. Both builds compile 0 errors / 0 warnings. Forces a full retrain. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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fa0455f399 |
diag: inference-path census, to explain zero-trade backtests
A backtest of the CONVERGED CONV model produced "Final directional result: 0.00000000" on every one of 1744 bars and therefore zero trades. Nothing in the log could separate the three candidate causes, and each needs a different fix: 1. RefreshLatestSignal never called (new-bar gate never fires) 2. called, but bailing at one of its two early returns 3. running fine, and the model genuinely answers Neutral every bar Counts all three plus the Buy/Sell/Neutral split, printed once at shutdown via StopTraining (which the tester reaches through OnDeinit). Three increments per bar against a full feedForward - not worth gating. Ruled out while writing this, so the next session does not re-derive it: - the alternation gate (m_lastNonNeutralSignal) is NOT the cause. It starts at Neutral, so a first Buy would still fire and show up as one non-zero direction. We saw zero. It IS still a live hazard for a one-sided model - CONV currently calls Buy:17% Sell:0%, and after the first Buy every later Buy is suppressed until a Sell that never comes - but it cannot explain an all-zero run. - shallow buffers do not hard-fail the feature builder: the swing-context Donchian loop breaks gracefully when it runs off loaded history. It does mean converged-path inference computes Donchian/return/SMA features over a TRUNCATED window versus training, which is a real train/inference skew worth its own fix, but it degrades features rather than zeroing them. Both builds 0/0. Diagnostic only. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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397b0eac1f |
refactor(ai): nine class-imbalance inputs down to two
The imbalance section offered nine controls for one job. Audited against the
code, five of them did not do what their names said at the shipped defaults:
AILogitPriorStrength DEAD - Inference.mqh's post-hoc prior early-returns
whenever the adjusted loss is on, which is default.
OversampleParity DEAD in training - Training.mqh gated the replay loop
on !useLogitAdjustedLoss (correctly, citing Buda et
al. 2018). Live only in the online-learning path.
EnableMinorityReplay DEAD as replay. It survived ONLY as a focal-gamma
damper - "replay minority bars through pass-2
oversampling" was a focal-loss switch.
ConstrainReplay DEAD as a cap; it only chose damper 0.125 vs 0.25.
UseStaticPrior An exact duplicate of FreezePriorCalibration - the two
were OR'd together in the single place either is read.
So they were not five mechanisms fighting; they were one mechanism plus eight
knobs that mostly described machinery that no longer ran. That is worse than
a real conflict, because the log agreed with the names: the label-cache line
printed "reps up to 28x (90% parity) (seeding era 0's class-balance
oversampling)" on every run, describing an oversampling pass that had been
switched off. It is fixed here too - it cost this session a wrong diagnosis.
The one genuine redundancy was focal loss, running at gamma*0.125 alongside
the adjusted loss: two corrections on the same axis, the exact stacking
failure this file already cited Buda et al. for in two other places, damped
by a replay flag whose replay path was itself dead. Removed rather than
re-tuned. The plateau ladder is unaffected - its escape is the learning-rate
warm restart; the gamma anneal beside it only ever stepped toward zero.
WHAT REMAINS is logit-adjusted loss (Menon et al. 2021) plus a prior freeze:
LogitAdjustTau 0 = off; replaces the separate EnableLogitAdjusted-
Loss boolean, since a strength dial where 0 already
means off does not need an on/off switch beside it.
FreezePriorCalibration unchanged.
It is the only one of the six corrections with a consistency guarantee, and
it is consistent for exactly the balanced-error metric checkpoint selection
already ranks on - so the loss and the deploy decision optimize one thing.
The online continual-learning path keeps its own alpha-balanced focal weight,
now as constants pinned to the removed inputs' shipped defaults, so its
behaviour is unchanged. It legitimately needs its own correction:
ApplyLogitAdjustment() only runs inside a training run, so a deployed model
that was reloaded carries no logit offsets and would otherwise stream 31:1
data into itself uncorrected.
The weights-filename fingerprint is BYTE-IDENTICAL. The focal slot was a
double fed to a %d conversion and had always emitted a literal 0; the |MR:
segment is written as the constant its shipped defaults produced. Dropping
either would have re-keyed every model and forced a from-scratch retrain of
the one topology currently converged and trading.
Also removed as orphans: FOCAL_GAMMA_PRESET, MAX_OVERSAMPLE_REPLICAS,
OVERSAMPLE_PARITY_FRACTION, PLATEAU_GAMMA_STEP, and the now-unreachable
"neutralized by prior correction" diagnostic.
Both builds compile 0 errors, 0 warnings. No retrain forced.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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0e5f1bb2f6 |
fix(ai): cap logit-adjustment strength to the head's usable logit range
tau=1.0 inverted the collapse instead of curing it. The head is SIGMOID, so each output is bounded to [0,1] and the widest logit gap the net can express between two classes is CLASS_LOGIT_SCALE * (1-0) = 6. The offsets are tau*log(prior_c), whose spread on this 30:1 imbalance is 3.42 - so tau=1.0 spent 57% of the ENTIRE expressible range on the prior correction. The network did the only thing available to it: saturate Buy/Sell outputs to 1.0 to overcome a -3.42 training handicap. The offsets are absent at inference, so that surplus made every bar directional. Measured across all five still-training charts: Neutral recall 0%, directional calls on ~100% of bars, win rate 5-7% against a ~6% base rate - no information whatsoever - while balanced accuracy read a flattering 58-64% because two of its three terms sat near 95%. OOS accuracy 6%. Menon et al. assume an unbounded logit head where a 3.42 shift is negligible against the reachable range. It is not negligible here, so the strength is now expressed RELATIVE to the range actually available: tau_eff = min(tau_cfg, LOGIT_ADJUST_MAX_RANGE_FRACTION * SCALE / spread) At 20% that gives tau 0.35 on this data. Deliberately a fraction rather than a tau ceiling: it stays correct if CLASS_LOGIT_SCALE changes, if the head becomes unbounded, or on any symbol whose imbalance differs. The input remains effective below the cap, so dialling it down needs no rebuild. Simulated at a signal strength where the task is genuinely learnable, the precision/recall frontier is monotone: tau 1.0 -> 49.6% call rate at 6.4% precision (base rate 6.1%, i.e. worthless); tau 0.35 -> 2.0% at 15.5%; tau 0.15 -> 0.2% at 33.3%. The capped value lands in the same regime the pre-logit-adjustment run occupied (1-6% of bars at 20-35% win rate). Also logs the measured priors, the spread, and whether the cap bound. Both builds compile 0 errors, 0 warnings. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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f2ec1edf84 |
feat(ai): logit-adjusted loss, replacing oversampling and the post-hoc prior
Menon et al. 2021 (ICLR), "Long-tail learning via logit adjustment": add tau*log(prior_c) to each class logit inside the training gradient. Softmax CE on adjusted logits is consistent for BALANCED error - the metric checkpoint selection already ranks on - so the loss and the deploy decision finally optimize the same thing. The engine already computed a true softmax + categorical-CE gradient and wrote it over the per-neuron sigmoid delta, so this is an offset added to three logits in the two places that gradient is built (backProp scalar path and backPropOCL). No backend, kernel or DLL change; the forward pass and every inference path are untouched, which is the point - the network learns to absorb the offset, so its raw argmax becomes the balanced-optimal decision with nothing applied at inference. Replaces rather than stacks. Minority replay is disabled while this is on, and the post-hoc inference prior is forced off. Stacking is not a theoretical worry: simulated on the measured 1118/1119/34298 distribution in the weak-signal regime, plain CE collapses to Neutral (33.4% balanced, Buy 0%), replay reaches 48.1%, logit adjustment 50.9% with better balance - and BOTH together score 45.4% with Neutral recall at 0%, worse than either alone. Buda et al. 2018 predicts exactly that. Motivation from the six-chart run: every topology took one direction to ~50% recall and abandoned the other, the direction chosen arbitrarily (the batch-norm control went Buy 1% / Sell 42%, the inverse of the other five). One era in 1,301 cleared the per-class recall floor. Fingerprinted conditionally, so the converged 60.7% models on disk keep their filenames and stay loadable as the fallback. Both builds compile 0 errors, 0 warnings. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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2de93539d4 |
refactor: split CExpertSignalAIBase implementation by responsibility
ExpertSignalAIBase.mqh was 8216 lines: the class declaration followed by 87 method bodies covering training, labelling, feature extraction, persistence, chart drawing, online learning, the GA auto-tuner and inference, all in one file. Train() alone is 1492 lines; a change to arrow drawing meant scrolling past the era loop. Moved the bodies into Expert\AIBase\, included at the bottom of the original after the class declaration: Training.mqh 1607 era loop, plateau ladder, checkpoint select, deploy Features.mqh 1093 indicator creation + per-bar input feature vector ChartUI.mqh 634 arrows, arrow persistence, status panel, cleanup Persistence.mqh 492 .stats/.cfg sidecars, CPU-inference validation, copy OnlineLearning.mqh 461 live continual learning, EMA shadow, OOS simulator Labels.mqh 309 ZigZag pivot labels, async label-cache prebuild AutoTune.mqh 275 genetic tuner (population, crossover, halving) Inference.mqh 235 softmax, prior calibration, class priors ExpertSignalAIBase.mqh 8216 -> 3131 (declaration + topology build only) This is a pure relocation - verified mechanically, not by eye: HEAD's file reconstructed from the eight partials plus the surviving remainder is byte-identical to HEAD, span for span (scratchpad verify_split.py). No declaration moved, no signature changed, no code rewritten, so behaviour is unchanged by construction. Compiles 0 errors, 0 warnings. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |